Improvement in seal-bolts



IN1 STATES PTENT FFIG.

JACOB KINZEB, OF PITTSBURG, PENNSYLVANIA.

HtlPRVEIVlENT IN SEAL-BOLTS.

Specification forming part of Letters Patent N0. ll.l8,2l9, dated March3, 1874; application filed September 9, 1873.

To all whom it may concerm Be it known that I, J A0013 KINZER, of thecity of Pittsburg, county of Allegheny and State of Pennsylvania, haveinvented a new and Improved Seal-Lock, of which the following is aspecification:

The drawings illustrate the nature and scope of this invention so fullythat a brief description will enable a mechanic to make and use it.

Figure 1 shows the bolt or pin, with its tubular seal attached, as seeniu use. Fig'. 2 is a face view of the bolt or pin,with the tubular sealbroken, showing the catch O in a locked position. Fig. 3 is a sectionalviewot the bolt or pin, showing the arrangement ofthe spring D and catchG. Fig. 4 is a perspective view of the tubular seal E.

The arms B B are made to project from either side of the bolt or pin Aa' sufficient distance to keep it from being turned around when locked.

The object of this device is to prevent any tampering with the spring orother portions of the lock, which might otherwise be done.

Fig. 3 shows the combined arrangement of the spring D, catch O, andtubular seal E, forming the lock on the pin. The recess F is formed inthe back of the pin about two ,inches in length, with an opening throughto the face of the pin A to receive the catch C. This catch is held inits place and operated by the spring D, which is fastened at both endsto the pin A by rivets or in any other secure manner.

The seal, Fig. 4, can be made of glass, iron, or any material which willnot yield enough to be forced downward over the catch O withoutbreaking. The one shown in the drawing is made of cast-iron, and is alsomade to go round the pin; but I do not confine myself to this particularform of the tubular seal. Any tubular form which accomplishes the doublepurpose of covering and protecting` the springcatch, and at the sametime operating as a part of the lock device, will be clearly within thespirit of my invention.

The seal E is made with a recessed opening, h, which corresponds inwidth to the `width of the pin, and in depth to the depth or thicknessot' said pin and the projection ofthe catch. On the upper side of theseal, and at the upper end, the edge is brought down so as to make theopening h to correspond with the thickness of the pin at or immediatelyabove the catch. At the lower end of the seal the edge is brought downto make the opening l1, correspond with the thickness of the pin belowthe shoulder z'. On or near the upper end of the seal I also form lugsor projections, R

It', between which an instrument can be inserted to break the seal. Onthe face of the bolt or pin A I form two shoulders, t' t', the upperone, z', about one-fourth of an inch above the catch C, the lower one,i', about threefourths of an inch below it. I make these shoulders aboutone-eighth of an inch in depth. The principal object of the lowershoulder is to prevent the insertion of any instrument under the seal Eto operate on the springcatch. Now when the seal is applied to the boltor pin A, as soon as it has passed the catch O, its upward movement isstopped by the shoulders z' i', and the seal operates, as will be seen,as a keeper to the spring-catch O, thus completing the locking device.At the same time it completely covers the sprln gcatch O, and is held inits place by the catch, so

that it cannot be drawn down until it is broken. When the pin is to beunlocked, any suitable instrument can be inserted between theprojections It B, and the seal will be easily broken and will drop oi'from the pin.

I claiml. The bolt or pin A, with arms B B', shout' ders z i', andspring-catch C, arranged substantially as shown, and for the purposedescribed.

2. In combinatipn with the bolt or pin A, a tubular seal, E, arranged toreceive, cover, and protect the spring-catch O, by which it is held andprevented from being removed without first being broken, substantiallyas described. I

3. The bolt or pin A with its shoulders, i i', and spring-catch O, incombination with the tubular seal E, constructed and operatingsubstantially as described.

JACOB KINZER.

Witnesses:

JAMES W. COLLINS, W. N. PAXTON.

